.cell-box {
  border: 4px solid #ccc;
  width: 50px;
  height: 50px;
  margin: -2px -2px;
  line-height: 42px;
  text-align: center;
  cursor: pointer;
  position: relative;
  background: #fff;
  box-sizing: border-box;
  color: blue;
  &.samevalue {
    border-color: #f99;
    z-index: 2;
  }
  &.current {
    border-color: red;
    z-index: 3;
  }
  &.input {
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
  }
  &.disabled {
    color: #999;
  }
}
